Hi, coming from someone who just took it – it is a hard test as any test is. However, the test requires a lot of studying. For example, if you know the underactive/overactive muscles on page 169 of the 4th edition of the the NASM book – you will do well. Know the professional conduct rules well, nutrition and supplement chapters. The test is based more on application than concept. The practice tests really did not help me, studying the book and knowing the content was more helpful. I was really nervous when I went in and came out as a Certified Personal Trainer. The NASM guideline sheet will tell you what to focus on and it’s a lot so pay attention to program design especially. Wish you well.